Study of removal effect and mutagenicity on Cyclops with ozidants
Cyclops of zooplankton propagated excessively in eutrophic water body and it couldnt be effectively inactivated by the conventional disinfection process. In this paper, a study of removal effect on Cyclops with oxidants in a drinking waterworks in China was conducted. Among five oxidants, chlorine dioxide was more effective against Cyclops and the potassium permanganate was the weakest with the same conditions. The full-scale results showed that Cyclops could be effectively removed from water by 1.0mg/L chlorine dioxide preoxidation cooperating with the conventional clarification process. The chlorite, by-product of prechlorine dioxide, was about at 0.45mg/L after filtration, which is lower than the critical value of the USEPA. The Ames test further showed that the mutagenicity in the treated water by chlorine dioxide preoxidation were obviously less than that of prechlorination.
bench and full-scale study Cyclops ozidants preozidation
Zuo Jinlong
Department of Environmental Engineering Harbin University of Commerce Harbin 150076,China
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）